Three-way catalytic converter for automobile exhaust

Abstract

The invention relates to a three-way catalytic converter for automobile exhaust, which comprises a shell equipped with a carrier, and a vibration-damping layer is arranged between the shell and the carrier. Triangular, the outer layer is a square, the middle part is a larger isosceles right triangle, the area of ​​the four smaller isosceles right triangles is the same as the area of ​​the square and the four smaller isosceles right triangles are arranged to form a Square, the area of ​​the two larger isosceles right triangles is the same as the area of ​​the square and the two larger isosceles right triangles are arranged to form a square. On the premise of ensuring the conversion efficiency, the present invention reduces the exhaust gas flow and heat load at the center of the carrier to make the radial flow uniform, so as to improve the heat load of the carrier and prolong the service life of the catalytic converter.

Description

technical field [0001] The invention relates to an automobile tail gas catalytic converter, in particular to a three-way catalytic converter for automobile tail gas. Background technique [0002] In the existing three-way catalytic converters for automobiles, the carrier pores all adopt a single triangle or quadrilateral, and the pore density in the same carrier remains unchanged. This makes the radial flow distribution uneven when the gas flows into the catalyst carrier, the flow in the center part is relatively large, and the flow around it is small; thus resulting in a high heat load in the center part and a small heat load in the surrounding areas, the conversion efficiency of the catalytic converter is reduced, and the service life is reduced . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a three-way catalytic converter for automobile exhaust. Under the premise of ensuring the conversion efficiency, the ...

AI Technical Summary

Problems solved by technology

This makes the radial flow distribution uneven when the gas flows into the catalyst carrier, the flow in the center part is relatively large, and the flow around it is small; thus resulting in a high heat load in the center part and a small heat load in the surrounding areas, the conversion efficiency of the catalytic converter is reduced, and the service life is reduced

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